Jack and Phil both like apples and oranges. Jack's preferences over these two goods are represented by the utility function U(xa, xo) = log(xa) + log(xo), where xa is the number of apples consumed and xo is the number of oranges consumed. Phil's preferences are represented by the utility function U(x , x ) = x10x10. Their friend Ken sees this and claims that Jack and Phil have the same preferences. True or False? Explain.